About This Software
📂 What is Folder Size Explorer?
Folder Size Explorer is a professional disk space analysis tool designed to solve one of Windows Explorer’s most frustrating limitations—the inability to see folder sizes at a glance. Built from the ground up with VB.NET and WPF, this application provides instant, accurate folder size calculations with stunning visual representations that make understanding your storage usage effortless and intuitive.
With over 125,000 users worldwide and a 4.7-star rating, Folder Size Explorer has become the go-to solution for system administrators, content creators, developers, and everyday users who need to manage their disk space effectively. Whether you’re hunting down space-hogging folders on a nearly full SSD, organizing media libraries, cleaning up project directories, or simply trying to understand where your storage has gone, Folder Size Explorer delivers the insights you need with unmatched speed and clarity.
💡 Why Folder Size Explorer Exists
Windows Explorer shows you file sizes instantly, but mysteriously hides folder sizes. To see how much space a folder consumes, you must right-click, select Properties, and wait while Windows calculates the size—a process that can take minutes for large directories. For users managing hundreds or thousands of folders, this workflow is painfully inefficient.
🎯 Core Capabilities
The heart of Folder Size Explorer is its lightning-fast folder size calculation engine. Using asynchronous scanning and parallel processing, the application recursively traverses directory structures and calculates sizes in real-time while keeping the UI responsive. Once a folder is scanned, its size is cached in memory for instant re-access on subsequent visits.
The TreeView interface provides hierarchical navigation with folder sizes displayed prominently next to each directory. Folders are color-coded by size—red for large, yellow for medium, green for small. Folder Size Explorer integrates OxyPlot charting to provide Pie Chart, Bar Chart, and Treemap visualization modes. Advanced filtering lets you show only folders larger than a set threshold, search by name, and filter by date modified.
🏆 Why Choose Folder Size Explorer?
- ✅ Instant Insights: See folder sizes immediately without right-clicking Properties
- ✅ Beautiful Visualizations: Charts and graphs make storage patterns obvious
- ✅ Lightning Fast: Asynchronous scanning processes millions of files efficiently
- ✅ Proven Reliability: 125,000+ users trust Folder Size Explorer daily
- ✅ No Bloatware: Clean installation with no bundled software or ads
Key Features
Discover what makes this software powerful and unique
Instant Folder Size Display
See folder sizes immediately in an Explorer-like TreeView interface without right-clicking Properties. Asynchronous background scanning calculates sizes in real-time while keeping the UI perfectly responsive, even when analyzing drives with millions of files.
Interactive Pie Chart Visualization
Beautiful OxyPlot-powered pie charts where slice size represents actual disk space consumption. Hover for exact sizes and percentages, click slices to drill down into folders. Instantly identify which directories are consuming the most space.
Color-Coded Size Indicators
Folders are automatically color-coded by sizeu2014red for large (space hogs), yellow for medium, green for small. Spot storage problems at a glance without reading numbers. Customizable thresholds let you define what constitutes large/medium/small.
Multi-Threaded Background Scanning
Advanced asynchronous scanning using Task-based patterns keeps the UI responsive during intensive scans. Navigate, search, and analyze while background threads process directory structures. Cancel or pause scans at any time without freezing.
Hierarchical TreeView Navigation
Familiar Windows Explorer-style TreeView shows folder hierarchy with sizes displayed next to each directory. Expand/collapse folders, sort by size/name/date, and navigate with keyboard shortcuts. Breadcrumb path shows current location.
Advanced Filtering & Search
Filter folders by minimum size (show only folders > 100MB), search by name in real-time, filter by date modified, or show only folders containing specific file types. Quickly find cleanup targets in massive directory structures.
Multiple Visualization Modes
Switch between Pie Chart, Bar Chart, and Treemap visualizations. Each mode reveals different insightsu2014pie charts for proportions, bar charts for rankings, treemaps for hierarchical space-filling visualization of nested folders.
Export & Reporting
Export complete folder hierarchy with sizes to CSV for Excel analysis, generate professional HTML reports with embedded charts, save visualizations as PNG images, or print formatted reports. Perfect for documentation and presentations.
Recent Locations & Favorites
Quick access dropdown shows 10 most recent scanned locations for one-click re-scanning. Bookmark frequently analyzed folders as Favorites. Complete scan history with timestamps and size snapshots tracks storage usage over time.
Smart Caching System
Previously scanned folders are cached in memoryu2014navigate back to analyzed directories and see results instantly without re-scanning. For drives with millions of files, caching reduces subsequent scan times from minutes to milliseconds.
Dark & Light Themes
Beautiful MaterialDesign-based interface with Dark and Light theme options. Smooth animations, high DPI support for 4K displays, responsive layout that adapts to window size, and custom icons for professional appearance.
Settings Persistence
All preferencesu2014window size, position, theme, view mode, sort order, favorites, recent locationsu2014are saved via XML serialization. Your custom configuration persists across sessions and system reboots automatically.
Get Started Options
Try it free or get it white-labeled for your business
🎁 Free Trial
Try before you buy • No commitment
✓ What's Included
- ✓ 30-day full access trial
- ✓ All features unlocked
- ✓ No credit card required
- ✓ Test on your own data
- ✓ Email support included
- ✓ No installation limits
🚀 White-Label Solution
Your Brand • Your Product • Your Profits
✓ What You Get
- ✓ Complete source code ownership
- ✓ Your branding, logo & colors
- ✓ Resell with 100% profits
- ✓ Custom features & modifications
- ✓ Ongoing support & updates
- ✓ Multi-license distribution rights
- ✓ Installation & deployment help
- ✓ Marketing materials included
⭐ 20+ years experience building software for clients across the globe
Trusted by entrepreneurs, agencies, and businesses to deliver professional white-label solutions
Technical Specifications
Detailed technical information
Gallery Images
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System Requirements
Minimum specifications to run this software